The table shows the results from an experiment designed to measure the momentum of two marbles, both before and after a collision. A fifth experiment is run, and the pre-collision momentum of marble 1 is 20 units. The total post-collision momentum is 40 units. What is the post-collision momentum of marble 1? A) 5 units. B) 10 units. C) Without more data about the pre-collision conditions, it is impossible to say. D) Without more data about the post-collision conditions, it is impossible to say.

The construction of phylogenetic trees is a mapping out the proposed divisions and common ancestors of all living species. traditionally, these trees have been built using morphological data, such as appearance and embryology. recently, it has been possible to construct these trees using molecular data. phylogenetic trees based on different types of information agree with each: that there is strong evidence of a real underlying common descent. this phylogenic tree is composed based on molecular data (rrna). what statements can we infer are true about the organisms throughout the tree? because the tree is rooted, all branches share a common ancestor. all organisms have some sort of cellular structure/organization. all eukaryotes evolved from bacteria. since the organisms contain rna, they share the same dna. if the organisms contain rna, the share the same four nitrogen bases.

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

Complete the statements to identify the first two steps of meiosis i. (1 ) the first and longest step of meiosis i is called i. (2)the second step of meiosis i is called i.